Pkgs

libass

Version: 0.17.4

libass is a portable subtitle renderer for the ASS/SSA (Advanced Substation Alpha/Substation Alpha) subtitle format.

Install package

min add libass

Library advanced-substation-alpha ass c

Updated 6 days ago

Spec hash: 4773fe75…285e
Built from: Source
Source archive: Upstream
Source archive SHA256: a886b3b8…c5a8
Dependencies: 4 build · 5 runtime

Quick links

[ Docs ] [ Changelog ] [ Repo ] [ Security ] [ SBOM ]

What is libass?

libass is a portable subtitle renderer for the ASS/SSA (Advanced Substation Alpha/Substation Alpha) subtitle format.

How to use this package

Quick install

Installs the package into the current environment for this session. Use --build or --runtime to persist it as a build-time or runtime dependency.

min add libass

Declare as a task dependency in minimal.toml

Listing the package under tasks.<name>.packages makes it available inside that task’s sandbox.

[tasks.dev]
packages = ["libass"]

Build-time vs runtime

Choose build-time for tools needed during compilation, runtime for dynamic libraries loaded at runtime.

min add --build libass
min add --runtime libass

Dependencies (9)

Dependencies
Name	Version	Kind
base	—	build
fontconfig	2.17.1	runtime
freetype	2.14.1	runtime
fribidi	1.0.16	runtime
glibc CVE:3	2.42	runtime
harfbuzz	14.2.0	runtime
make	4.4.1	build
pkgconf	2.5.1	build
toolchain	—	build

Dependants (1)

Dependants
Name	Version
ffmpeg	8.1.1

No direct advisories

This package inherits 12 transitive advisories from its dependencies.

Include transitive

Showing 12 transitive advisories via libass's dependencies

Security advisories for this package
	Status	IDs	Package	Version	Severity	Published
Critical ( 0 )
High ( 10 )
	Affected: 2.42	CVE-2025-15281	glibc	`2.42`	High: 7.5	5 months ago
Summary No summary published for this advisory. Via: glibc Affected ranges `2.42` CVSS vector: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H` References Advisory: http://www.openwall.com/lists/oss-security/2026/01/20/3 Fix: https://sourceware.org/bugzilla/show_bug.cgi?id=33814
	Affected: 2.42	CVE-2026-0915	glibc	`2.42`	High: 7.5	5 months ago
Summary No summary published for this advisory. Via: glibc Affected ranges `2.42` CVSS vector: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N` References Report: https://sourceware.org/bugzilla/show_bug.cgi?id=33802 ARTICLE: http://www.openwall.com/lists/oss-security/2026/01/16/6
	Affected: 2.42	CVE-2026-0861	glibc	`2.42`	High: 8.4	5 months ago
Summary No summary published for this advisory. Via: glibc Affected ranges `2.42` CVSS vector: `CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` References Fix: https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0001 , http://www.openwall.com/lists/oss-security/2026/01/16/5 Evidence: https://sourceware.org/bugzilla/show_bug.cgi?id=33796
	Resolved in 9ceb800ac26fd81a5eaf27ef366d5fce47e80447	OSV-2023-930	harfbuzz	`9ceb800ac26fd81a5eaf27ef366d5fce47e80447, fixed in 9ceb800ac26fd81a5eaf27ef366d5fce47e80447`	High	3 years ago
Summary Heap-buffer-overflow in OT::cvar::decompile_tuple_variations Via: harfbuzz Affected ranges `9ceb800ac26fd81a5eaf27ef366d5fce47e80447, fixed in 9ceb800ac26fd81a5eaf27ef366d5fce47e80447` Fixed in: `9ceb800ac26fd81a5eaf27ef366d5fce47e80447` References Report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62774
	Resolved in 4e2f409bce77b97de2d098365977beeeb4447b1e	OSV-2022-112	harfbuzz	`4e2f409bce77b97de2d098365977beeeb4447b1e, fixed in 4e2f409bce77b97de2d098365977beeeb4447b1e`	High	4 years ago
Summary Heap-use-after-free in hb_bit_set_invertible_t::next Via: harfbuzz Affected ranges `4e2f409bce77b97de2d098365977beeeb4447b1e, fixed in 4e2f409bce77b97de2d098365977beeeb4447b1e` Fixed in: `4e2f409bce77b97de2d098365977beeeb4447b1e` References Report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44263
	Resolved in 4e2f409bce77b97de2d098365977beeeb4447b1e	OSV-2022-111	harfbuzz	`4e2f409bce77b97de2d098365977beeeb4447b1e, fixed in 4e2f409bce77b97de2d098365977beeeb4447b1e`	High	4 years ago
Summary Heap-use-after-free in OT::CoverageFormat1::intersected_coverage_glyphs Via: harfbuzz Affected ranges `4e2f409bce77b97de2d098365977beeeb4447b1e, fixed in 4e2f409bce77b97de2d098365977beeeb4447b1e` Fixed in: `4e2f409bce77b97de2d098365977beeeb4447b1e` References Report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44257
	Resolved in 4e2f409bce77b97de2d098365977beeeb4447b1e	OSV-2022-104	harfbuzz	`4e2f409bce77b97de2d098365977beeeb4447b1e, fixed in 4e2f409bce77b97de2d098365977beeeb4447b1e`	High	4 years ago
Summary Heap-use-after-free in hb_bit_set_invertible_t::intersects Via: harfbuzz Affected ranges `4e2f409bce77b97de2d098365977beeeb4447b1e, fixed in 4e2f409bce77b97de2d098365977beeeb4447b1e` Fixed in: `4e2f409bce77b97de2d098365977beeeb4447b1e` References Report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44198
	Resolved in 00fdbca4f6a5c4623b9c4838da502cccce8aaa74	OSV-2018-140	harfbuzz	`00fdbca4f6a5c4623b9c4838da502cccce8aaa74, fixed in 00fdbca4f6a5c4623b9c4838da502cccce8aaa74`	High	5 years ago
Summary Heap-buffer-overflow in BEInt<unsigned short, 2>::operator unsigned short Via: harfbuzz Affected ranges `00fdbca4f6a5c4623b9c4838da502cccce8aaa74, fixed in 00fdbca4f6a5c4623b9c4838da502cccce8aaa74` Fixed in: `00fdbca4f6a5c4623b9c4838da502cccce8aaa74` References Report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11074
	Resolved in 00fdbca4f6a5c4623b9c4838da502cccce8aaa74	OSV-2018-116	harfbuzz	`00fdbca4f6a5c4623b9c4838da502cccce8aaa74, fixed in 00fdbca4f6a5c4623b9c4838da502cccce8aaa74`	High	5 years ago
Summary Heap-buffer-overflow in BEInt<unsigned short, 2>::operator unsigned short Via: harfbuzz Affected ranges `00fdbca4f6a5c4623b9c4838da502cccce8aaa74, fixed in 00fdbca4f6a5c4623b9c4838da502cccce8aaa74` Fixed in: `00fdbca4f6a5c4623b9c4838da502cccce8aaa74` References Report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11060
	Resolved in 7a6686a589ed6bf17a5af0b8012501e4d4ee2ded	OSV-2018-61	harfbuzz	`7a6686a589ed6bf17a5af0b8012501e4d4ee2ded, fixed in 7a6686a589ed6bf17a5af0b8012501e4d4ee2ded`	High	5 years ago
Summary Heap-buffer-overflow in BEInt<unsigned short, 2>::operator unsigned short Via: harfbuzz Affected ranges `7a6686a589ed6bf17a5af0b8012501e4d4ee2ded, fixed in 7a6686a589ed6bf17a5af0b8012501e4d4ee2ded` Fixed in: `7a6686a589ed6bf17a5af0b8012501e4d4ee2ded` References Report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12312
Medium ( 2 )
	Under investigation	CVE-2026-40930	libpng	`1.6.50 – 1.6.58`	Medium: 5.4	11 days ago
Summary LIBPNG is a reference library for use in applications that process PNG (Portable Network Graphics) raster image files. In version 1.8.0, three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside an ignored ancillary chunk to be reinterpreted as a fresh chunk header on the next call to `png_process_data`. Commit faf06924688b62d7c1654b5ceddedbde66ffadb4 fixes the issue. Via: freetype libpng Affected ranges `1.6.50 – 1.6.58` CVSS vector: `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L`
	Resolved in 04d60de6ae06562262f04e8e2e4d9441c66233e0	OSV-2025-550	harfbuzz	`04d60de6ae06562262f04e8e2e4d9441c66233e0, fixed in 04d60de6ae06562262f04e8e2e4d9441c66233e0`	Medium	11 months ago
Summary Use-of-uninitialized-value in CFF::cff2_cs_opset_t<cff2_cs_opset_subr_subset_t, CFF::subr_subset_param_t, CFF: Via: harfbuzz Affected ranges `04d60de6ae06562262f04e8e2e4d9441c66233e0, fixed in 04d60de6ae06562262f04e8e2e4d9441c66233e0` Fixed in: `04d60de6ae06562262f04e8e2e4d9441c66233e0` References Report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=431867896
Low ( 0 )
Unknown ( 0 )

54 components

Software Bill of Materials — every package this build depends on
Packages	Version	Repository	Licence
libass ROOT	0.17.4	github.com/libass/libass	ISC
acl	2.3.2	https://storage.googleapis.com/minimal-staging-archives/acl-2.3.2.tar.xz MIRROR	(GPL-2.0-only AND LGPL-2.1-only)
attr	2.5.2	https://storage.googleapis.com/minimal-staging-archives/attr-2.5.2.tar.gz MIRROR	(GPL-2.0-only AND LGPL-2.1-only)
bash	5.3	www.gnu.org/software/bash	GPL-3.0-only
bash-bootstrap	5.3	https://storage.googleapis.com/minimal-staging-archives/bash-5.3.tar.gz MIRROR	GPL-3.0-only
binutils	2.46.1	www.gnu.org/software/binutils	(GPL-2.0-only AND GPL-3.0-only AND LGPL-2.0-only)
bison	3.8.2	www.gnu.org/software/bison	GPL-3.0-only
bzip2	1.0.8	github.com/libarchive/bzip2	bzip2-1.0.6
coreutils	9.11	www.gnu.org/software/coreutils	GPL-3.0-only
diffutils	3.12	www.gnu.org/software/diffutils	GPL-3.0-only
expat	2.7.5	github.com/libexpat/libexpat	MIT
file	5.47	https://storage.googleapis.com/minimal-staging-archives/file-5.47.tar.gz MIRROR	BSD-2-Clause-Darwin
findutils	4.10.0	https://storage.googleapis.com/minimal-staging-archives/findutils-4.10.0.tar.xz MIRROR	GPL-3.0-only
flex	2.6.4	github.com/westes/flex	BSD-3-Clause-flex
fontconfig	2.17.1	https://storage.googleapis.com/minimal-staging-archives/fontconfig-2.17.1.tar.xz MIRROR	HPND-sell-variant
freetype	2.14.1	https://storage.googleapis.com/minimal-staging-archives/freetype-2.14.1.tar.xz MIRROR	FTL OR GPL-2.0-or-later
fribidi	1.0.16	github.com/fribidi/fribidi	LGPL-2.1-or-later
gawk	5.4.0	www.gnu.org/software/gawk	GPL-3.0-only
gawk-bootstrap	5.3.2	https://storage.googleapis.com/minimal-staging-archives/gawk-5.3.2.tar.xz MIRROR	GPL-3.0-only
gcc	15.2.0	www.gnu.org/software/gcc	(GPL-2.0-only AND GPL-3.0-only AND LGPL-2.1-only)
gdbm	1.26	www.gnu.org/software/gdbm	GPL-3.0-only
glib	2.86.4	https://storage.googleapis.com/minimal-staging-archives/glib-2.86.4.tar.xz MIRROR	LGPL-2.1-or-later
glibc	2.42	www.gnu.org/software/glibc	(GPL-2.0-only AND LGPL-2.1-only)
gmp	6.3.0	www.gnu.org/software/gmp	LGPL-3.0-or-later OR GPL-2.0-or-later
gperf	3.1	www.gnu.org/software/gperf	GPL-3.0-only
grep	3.12	www.gnu.org/software/grep	GPL-3.0-only
gzip	1.14	www.gnu.org/software/gzip	GPL-3.0-only
harfbuzz	14.2.0	github.com/harfbuzz/harfbuzz	MIT-Modern-Variant
libcap	2.78	https://storage.googleapis.com/minimal-staging-archives/libcap-2.78.tar.xz MIRROR	BSD-3-Clause OR GPL-2.0-only
libffi	3.5.2	github.com/libffi/libffi	MIT
libpng	1.6.58	github.com/pnggroup/libpng	libpng-2.0
linux_headers	6.12.43	github.com/torvalds/linux	GPL-2.0-only WITH Linux-syscall-note
lz4	1.10.0	github.com/lz4/lz4	BSD-2-Clause AND GPL-2.0-or-later
m4	1.4.21	www.gnu.org/software/m4	GPL-3.0-only
make	4.4.1	www.gnu.org/software/make	GPL-3.0-only
meson	1.10.1	github.com/mesonbuild/meson	Apache-2.0
mpc	1.4.0	www.gnu.org/software/mpc	LGPL-3.0-or-later
mpfr	4.2.2	www.gnu.org/software/mpfr	GPL-3.0-only
ncurses	6.5-20250830	www.gnu.org/software/ncurses	X11-distribute-modifications-variant
ninja	1.13.2	github.com/ninja-build/ninja	Apache-2.0
openssl	3.6.2	github.com/openssl/openssl	Apache-2.0
pcre2	10.47	github.com/PCRE2Project/pcre2	BSD-3-Clause WITH PCRE2-exception
perl	5.42.0	github.com/Perl/perl5	Artistic-1.0-Perl OR GPL-1.0-or-later
pkgconf	2.5.1	github.com/pkgconf/pkgconf	pkgconf
python	3.14.5	github.com/python/cpython	Python-2.0.1
readline	8.3	www.gnu.org/software/readline	GPL-3.0-only
sed	4.9	www.gnu.org/software/sed	GPL-3.0-only
setuptools	82.0.1	github.com/pypa/setuptools	MIT
sqlite	3.50.4	github.com/sqlite/sqlite	blessing
tar	1.35	www.gnu.org/software/tar	GPL-3.0-only
util-linux	2.42.1	github.com/util-linux/util-linux	GPL-2.0-or-later AND LGPL-2.1-or-later AND BSD-3-Clause
xz	5.8.3	github.com/tukaani-project/xz	(0BSD AND GPL-2.0-only AND GPL-3.0-only AND LGPL-2.1-only)
zlib	1.3.2	github.com/madler/zlib	Zlib
zstd	1.5.7	github.com/facebook/zstd	BSD-3-Clause OR GPL-2.0-only

libass

Install package

Quick links

What is libass?

How to use this package

Quick install

Declare as a task dependency in minimal.toml

Build-time vs runtime

Dependencies (9)

Dependants (1)

Summary

Affected ranges

References

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Summary

Affected ranges

References

54 components